Eruvin 20
The case of an eruv that was set up on Shabbat intentionally/unintentionally and how it impacts one's ability to continue carrying within it

The case of an eruv that was set up on Shabbat intentionally/unintentionally and how it impacts one's ability to continue carrying within it
The teaching of Resh Lakesh that Avraham Avinu rescues any Jew from hell who has a circumcision, and the punishment of a Jew who has forbidden relations with a gentile
The aggadda of God creating man and woman as one creation and then splitting them, the source for 2 of the 7 berachot made at a wedding, the evils of not joining in the congregation's communal prayer
The laws of carrying when an eruv is dismantled or broken on Shabbat, do people need to be warned and told not to continue carrying in such a circumstance?
The case of building an eruv in the wilderness and why the Rabbis used the example of a caravan- was this an exclusive halacha or just the most typical case at the time- analysis of their principle that the Rabbis spoke contemporaneously
The principle of omed merubeh al haparutz (the solid sections of the fencing are greater than the breached/open sections) and the invalidation of an eiruv when an opening is more than 10 amot- application to the Seagate community Eruv
The rules of a lechi that is suspended above the ground more than 3 tefachim/handbreadths, machloket acharonim in the law of mechitza teluya
Analysis of the machloket Beit Shammai vs. Hillel, meaning of the phrase, "eilu v'eilu divrei elokim chaim"
How many walls are needed to permit carrying in a reshut hayachid? 3? 4? What constitutes a wall for this purpose?
Defining the parameters and power of the tzuras hapesach to transform a space into a private domain on Shabbat, application to laws of mezuza in different scenarios
Different methods for making sure the entryway to an alleyway is not wider than 10 amot, application to a section of an eruv that could not be used as an entrance because it had field mines
The status of the space in between the side-posts, the logic of min b'mino v'neior, guard duty on shabbat and minimizing prohibition, deeper idea behind this principle
The status of a body of water in the construction of an eruv
Following 2 chumrot/stringencies or kulot/leniences in halacha
The parameters of a reshut harabim: width of roads, 600,000 people- all at one time? In one day? On one street? In one city? Does it include visitors/non-residents?
What is the maximum permitted width of a breach in the wall of an alleyway to maintain its status of a place that can be carried within it, the new status of chatzer and mavui in the days after the Talmudic era
The special limmud of Eruvin to bring mashiach, the principle of lavud in the laws of eruvin and in what cases it may not/may not be applied
The principles of Eruvin are modeled after Torah structures of Sukkah and the Beit Hamikdash, the principle that we are more lenient in certain cases within a group because the group members can remind one another of possible halachic violations
The difference between a korah- crossbeam and a lechi- side-post, the deeper idea behind the institution of eiruvin and introduction to the masechet
How could Rabbah bar Rav Huna be measuring the water in his bathtub even if it was only mitasek? Closing thoughts on masechet Shabbat
Understanding how Chazal could use the stars and constellations to understand human nature, the concept of ein mazal l'yisrael
Feeding dogs on Shabbat, the special merit of dogs in yetziat mitzrayim
The permission to untie a load on an animal on Shabbat to alleviate the pain, application to trash bin on wheels
The principle of amira l'nochri on Shabbat, can a gentile act as an agent for halachic purposes?
The mitzvah of nichum aveilim when there are no mourners- applications to the wording of hamakom, which takes precedence: comforting mourners or visiting the sick, comforting mourners over phone or video call
How will the days of mashiach look different than the world as it is right now?
The prohibition of asking a gentile to perform a melacha for a Jew on Shabbat- the reasoning behind it, and application to a case where there was a great need, mitzvah, or issue of kavod habriyot
Someone who is punished because of another person's actions, this person will be pushed away by Hashem, application to granting full forgiveness to those who wrong or insult a person
Reading out guest names and table numbers for a Shabbat meal, applications to name cards and waiters calling out guest names
Halachot of laundering- rubbing or shaking off dust from clothing on Shabbat, subjective to how particular a person is, application to one person cleaning off clothes of another on Shabbat